Question 1

The law of constant composition applies to .

Accepted Answer

A)   homogeneous mixtures
B)   solids
C)   heterogeneous mixtures
D)   solutions
E)   compoundsF) B) and D)
G) C) and D)

Question 2

The SI unit for mass is _.

Accepted Answer

A)   troy ounce
B)   none of the above
C)   gram
D)   pound
E)   kilogramF) B) and E)
G) A) and D) E

Question 3

A temperature of _ K is the same as 63°F.

Accepted Answer

A)   290
B)   336
C)   276
D)   17
E)   29F) C) and D)
G) C) and E)

Question 4

If an object is accelerating at a rate of 25 m/s2, how fast will it be moving (in m/s)  after 1.50 min? (Assume an initial velocity of zero.)

Accepted Answer

A)   3.6
B)   38
C)   2.3 × 103 
D)   17
E)   0.060F) None of the above
G) A) and B)

Question 5

1 picometer = centimeters

Accepted Answer

A)   1 × 1010 
B)   1 × 10- 10 
C)   1 × 10- 8 
D)   1 × 10- 12 
E)   1 × 108F) B) and E)
G) C) and D)

Question 6

The unit of force in the English measurement system is . The SI unit of force is the Newton,Which is          in base SI units.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) A) and D)
G) C) and D)

Question 7

A temperature of 400 K is the same as °F.

Accepted Answer

A)   286
B)   261
C)   88
D)   127
E)   103F) A) and E)
G) A) and D)

Question 8

The correct answer (reported to the proper number of significant figures) to the following is
.
(1815- 1806) × (9.11 × 7.92) = __________

Accepted Answer

The answer of The correct answer (reported to the proper...

Question 9

The correct result of the molecular mass calculation for H2SO4 is _ .
4 × 15.9994 + 32.066 + 2 × 1.0079

Accepted Answer

A)   98.84
B)   98.08
C)   98.838
D)   98.079
E)   98.074F) A) and D)
G) D) and E)

Question 10

The number 0.00430 has significant figures.

Accepted Answer

A)   5
B)   3
C)   4
D)   2
E)   6F) All of the above
G) A) and E)

Question 11

The SI unit of temperature is .

Accepted Answer

A)   K
B)   t
C)   °F
D)   °C
E)   TF) A) and E)
G) All of the above

Question 12

One angstrom, symbolized Å, is 10- 10 m. 1 cm3 = Å3.

Accepted Answer

A)   10- 30 
B)   10- 24 
C)   1030 
D)   10- 9 
E)   1024F) None of the above
G) All of the above

Question 13

How many significant figures are in the measurement 5.34 g?

Accepted Answer

A)   4
B)   2
C)   3
D)   1
E)   5F) B) and C)
G) B) and E) C

Question 14

If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an)  .

Accepted Answer

A)   element
B)   compound
C)   heterogeneous mixture
D)   homogeneous mixture
E)   mixture of elementsF) None of the above
G) C) and D)

Question 15

1 nanometer = picometers

Accepted Answer

A)   0.1
B)   0.01
C)   1000
D)   1
E)   10F) A) and C)
G) A) and B)

Question 16

Which one of the following has the element name and symbol correctly matched?

Accepted Answer

A)   Fe, iron
B)   N, neon
C)   B, bromine
D)   S, sodium
E)   Tn, tinF) D) and E)
G) All of the above

Question 17

There are _ ng in a pg.

Accepted Answer

A)   0.01
B)   1000
C)   10
D)   0.001
E)   100F) C) and E)
G) B) and D)

Question 18

Water is considered to be a diatomic molecule because it is composed of two different atoms.

Accepted Answer

A) True 
 B)False

Question 19

Osmium has a density of 22.6 g/cm3. What volume (in cm3)  would be occupied by a 21.8 g sample of osmium?

Accepted Answer

A)   2.03 × 10- 3
B)   1.04
C)   493
D)   0.965
E)   2.03 × 103F) B) and C)
G) A) and E) D

Question 20

A common English set of units for expressing velocity is miles/hour. The SI unit for velocity is ?

Accepted Answer

A)   cm/s
B)   m/hr
C)   km/hr
D)   m/s
E)   km/sF) A) and C)
G) B) and C)

Exam 1: Introduction: Matter and Measurement

The law of constant composition applies to .

Correct AnswerverifiedShow Answer

The SI unit for mass is _.

Correct AnswerverifiedE

A temperature of _ K is the same as 63°F.

Correct AnswerverifiedShow Answer

If an object is accelerating at a rate of 25 m/s2, how fast will it be moving (in m/s) after 1.50 min? (Assume an initial velocity of zero.)

Correct AnswerverifiedShow Answer

1 picometer = centimeters

Correct AnswerverifiedShow Answer

The unit of force in the English measurement system is . The SI unit of force is the Newton,Which is in base SI units.

Correct AnswerverifiedShow Answer

A temperature of 400 K is the same as °F.

Correct AnswerverifiedShow Answer

The correct answer (reported to the proper number of significant figures) to the following is . (1815- 1806) × (9.11 × 7.92) = __________

Correct AnswerverifiedShow Answer

The correct result of the molecular mass calculation for H2SO4 is _ . 4 × 15.9994 + 32.066 + 2 × 1.0079

Correct AnswerverifiedShow Answer

The number 0.00430 has significant figures.

Correct AnswerverifiedShow Answer

The SI unit of temperature is .

Correct AnswerverifiedShow Answer

One angstrom, symbolized Å, is 10- 10 m. 1 cm3 = Å3.

Correct AnswerverifiedShow Answer

How many significant figures are in the measurement 5.34 g?

Correct AnswerverifiedC

If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) .

Correct AnswerverifiedShow Answer

1 nanometer = picometers

Correct AnswerverifiedShow Answer

Which one of the following has the element name and symbol correctly matched?

Correct AnswerverifiedShow Answer

There are _ ng in a pg.

Correct AnswerverifiedShow Answer

Water is considered to be a diatomic molecule because it is composed of two different atoms.

Correct AnswerverifiedShow Answer

Osmium has a density of 22.6 g/cm3. What volume (in cm3) would be occupied by a 21.8 g sample of osmium?

Correct AnswerverifiedD

A common English set of units for expressing velocity is miles/hour. The SI unit for velocity is ?

Correct AnswerverifiedShow Answer

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E

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If an object is accelerating at a rate of 25 m/s², how fast will it be moving (in m/s) after 1.50 min? (Assume an initial velocity of zero.)

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The correct result of the molecular mass calculation for H₂SO₄is _ . 4 × 15.9994 + 32.066 + 2 × 1.0079

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One angstrom, symbolized Å, is 10^-¹⁰m. 1 cm³= Å³.

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C

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Osmium has a density of 22.6 g/cm³. What volume (in cm³) would be occupied by a 21.8 g sample of osmium?

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D

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